50 Seeds or 100 seeds Buttercrunch is a Bibb type whose prized shape and buttery, chewy leaves have become a favorite for salads. Compact butterhead-type head lettuce is productive, heat tolerant and slow to bolt. Mildly flavored leaves. 65 DAYS. - Compact butterhead-type head lettuce is productive, heat tolerant and slow to bolt. Mildly flavored leaves. 65 DAYS. Annual Planting depth ⅛" Thin 10"-12" Days to germination 7-10 Days Maturity 60 Daysewt_1942